EduSahara™ Assignment
Name : Median of Raw Data
Chapter : Mean and Median of Ungrouped Data
Grade : ICSE Grade IX
License : Non Commercial Use
Question
1
1.
The scores obtained by 14 students in a test are given below. Find the median.
13
11
16
4
3
11
8
19
8
5
13
2
7
4
(i)
8
(ii)
17
(iii)
19
(iv)
4
(v)
2
Question
2
2.
Find the median of all prime numbers between 30 and 80.
(i)
56
(ii)
55
(iii)
57
(iv)
53
(v)
58
Question
3
3.
Find the median of all the factors of 10.
(i)
4
(ii)
7
2
(iii)
9
2
(iv)
5
2
(v)
13
4
Question
4
4.
Find the median of first 5 whole numbers.
(i)
4
(ii)
0
(iii)
3
(iv)
1
(v)
2
Question
5
5.
Find the median of all the factors of 20.
(i)
11
2
(ii)
9
2
(iii)
17
4
(iv)
7
2
(v)
5
Question
6
6.
Find the median of the first 20 odd numbers.
(i)
17
(ii)
20
(iii)
21
(iv)
19
(v)
23
Question
7
7.
Find the median of the first 20 even numbers.
(i)
20
(ii)
21
(iii)
19
(iv)
24
(v)
22
Question
8
8.
The marks obtained by 11 students in a test are given below. Find their median marks.
9
1
44
36
10
33
18
23
27
15
1
(i)
20
(ii)
16
(iii)
18
(iv)
17
(v)
19
Question
9
9.
Heights of 13 students (in cm) are given below. Find the median height.
138
147
171
147
173
141
163
172
132
170
130
125
175
(i)
149
cm
(ii)
146
cm
(iii)
147
cm
(iv)
145
cm
(v)
148
cm
Question
10
10.
Heights of 10 plants (in cm) are given below. Find the median height.
70
91
75
97
79
76
70
66
62
84
(i)
151
2
cm
(ii)
153
2
cm
(iii)
76
cm
(iv)
155
2
cm
Question
11
11.
Ages of 11 students (in years) are given below. Find the median age.
15
12
11
15
13
13
11
10
15
13
14
(i)
15
years
(ii)
13
years
(iii)
12
years
(iv)
14
years
(v)
11
years
Question
12
12.
Rainfall of 11 days (in mm) are given below. Find the median rainfall.
13
5
5
14
10
9
10
13
15
13
5
(i)
9
mm
(ii)
11
mm
(iii)
12
mm
(iv)
10
mm
(v)
8
mm
Question
13
13.
Scores of 12 students are given below. Find the median score.
72
75
87
76
80
78
80
88
89
73
74
70
(i)
78
(ii)
79
(iii)
76
(iv)
75
(v)
77
Question
14
14.
Temperatures of 11 days (in °C) are given below. Find the median temperature.
27
33
31
28
29
30
33
33
26
35
33
(i)
33
°C
(ii)
30
°C
(iii)
32
°C
(iv)
29
°C
(v)
31
°C
Question
15
15.
Weights of 14 students (in kg) are given below. Find the median weight.
48
45
54
60
47
60
53
47
54
49
55
51
47
57
(i)
52
kg
(ii)
54
kg
(iii)
53
kg
(iv)
50
kg
(v)
51
kg
Question
16
16.
Daily wages of 15 labourers (in ₹) are given below. Find the median wage.
307
363
390
362
421
354
480
300
480
439
329
483
342
417
482
(i)
₹
392.00
(ii)
₹
391.00
(iii)
₹
388.00
(iv)
₹
389.00
(v)
₹
390.00
Question
17
17.
The observations of an ungrouped data are
x
1
,
x
2
,
2x
1
and
x
1
<
x
2
<
2x
1
.
If the mean and median of the data are equal to
24
,
find the observations of the data
(i)
16
,
24
,
32
(ii)
20
,
24
,
36
(iii)
32
,
24
,
64
(iv)
17
,
24
,
34
Question
18
18.
The observations of an ungrouped data are
x
1
,
x
2
,
x
3
and
x
1
<
x
2
<
x
3
.
If the mean and median of the data are
36
and
24
respectively and
x
3
-
x
1
=
60
,
find
x
1
,
x
2
,
x
3
(i)
16
,
24
,
76
(ii)
14
,
24
,
74
(iii)
24
,
24
,
144
(iv)
12
,
24
,
72
Question
19
19.
Given an even number of random samples with the middle two samples as
x +
15
and x +
18
and the median as
21
1
2
,
find the value of x.
(i)
4
(ii)
5
(iii)
7
(iv)
6
(v)
2
Assignment Key
1) (i)
2) (i)
3) (ii)
4) (v)
5) (ii)
6) (ii)
7) (ii)
8) (iii)
9) (iii)
10) (i)
11) (ii)
12) (iv)
13) (v)
14) (v)
15) (i)
16) (v)
17) (i)
18) (iv)
19) (ii)
